from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. The presence of perceived flashes of light
from the GNU version of the Collaborative International Dictionary of English
- n. An affection of the eye, in which the patient perceives luminous rays, flashes, coruscations, etc. See phosphene.
from The Century Dictionary and Cyclopedia
- n. The condition of having the sensation as of light or of flashes of light without external cause.
photo- + -opsia (Wiktionary)